-How careful Jim is! - He writes in our class. A. more carefulB. most carefullyC. most ca

问题补充：

-How careful Jim is! - He writes in our class.

A. more careful

B. most carefully

C. most careful

D. more carefully

答案：

A. more careful

(答案→)B. most carefully

C. most careful

D. more carefully

解析：此题考查比较结构，副词的最高级。